I'm trying Smooze out now on a Hackintosh system with High Sierra 10.13.3 and an older Logitech Revolution MX running the latest version of Logetch's control center.
Control Center was fine in El Capitan, but it's disappointing in High Sierra with respect to the smoothness of scrolling. Some applications are fine (Safari, Chrome, Firefox) while others (Notes, Finder Windows, and Bear) are choppy.
After downloading Smooze, I was able to smooth the scrolling out across all applications by turning acceleration off in the Logitech Control Center and controlling t from Smooze. I'll keep testing for a few more days, but right now, I'm a buyer.